The draw of the Bayville Bridge, mile 0.1, at Oyster Bay, New York, shall open on signal between 7 a.m. and 11 p.m., from May 1 through October 31, and between 7 a.m. and 5 p.m., Monday through Friday, from November 1 through April 30. At all other times the draw shall open on signal provided at least a two-hour advance notice is given by calling the number posted at the bridge.